The Mexican president on Thursday rejected a request from Ukraine’s government to arrest Vladimir Putin if the Russian leader defies an international arrest warrant and attends the inauguration of Mexico’s next president in October. “We can’t do that,” President Andres Manuel Lopez Obrador told reporters at a regular government press conference. “It’s not up to us.” Ukraine asked Mexico to arrest Putin if he attends the Oct. 1 swearing-in ceremony of President-elect Claudia Sheinbaum. The request, in a statement from Ukraine’s Mexican embassy dated Aug. 7, pointed to an arrest warrant issued by the U.N.'s International Criminal Court (ICC).